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- reactance resistance ratio 电抗电阻比
- The effects of diamond grain sizes on wear resistance ratio of the sintering diamond compacts are investigated. 研究了金刚石的粒度对烧结体磨耗比的影响；
- The old style resistance ratio was 1:3, whereas the new DB and RR resistance ratio is a minimum of 1:15. 以前的电阻比为1：3，但是现在的电阻比的最小值已经达到1：15。
- Resistance ratio(RR) is calculated based on the baseline data tested with Taihu susceptible strain. 抗性倍数以太湖敏感品系为对照计算获得。
- Results The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 结果苏州市德国小蠊对敌敌畏的抗性系数大于66.;85;对残杀威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系数分别是1
- The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 苏州市德国小蠊对敌敌畏的抗性系数大于66.;85;对残杀威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系数分别是1
- Objective:To assess the Doppler perfusion index(DPI),portal congestive index(PCI)and resistance ratio index(RR)for differential diagnosis of malignant and benign hepatic space occupying lesions. 目的：应用多普勒超声（D－US）测定多普勒血流灌注指数（DPI）、门脉充血指数（PCI）及阻力比（RR）等血流参数，用以评价这些血流参数在肝内良、恶性占位病变中的鉴别诊断和早期诊断价值。
- The drug resistance ratio of gram-negative rods to the third generation of cephalosporin was elevated.It pointed out that one should strengthen the culture pathogenic bacteria and drug ... 革兰阴性杆菌对三代头孢菌素的耐药率增高,指出今后应加强病原菌培养及药敏监测,以指导临床科学使用抗生素。
- Effect of neutral grounded by low reactance to the switching over-voltage for Gongboxia transformer 公伯峡变压器中性点经小电抗接地对线路操作过电压的影响
- That of resistance ratios were 9.6,29.4,7.9 folds and 4.1, 18.1, 29 folds to imidacloprid, omethoate and methomyl. 苍山、泰安两种群对4种药剂的抗性亦有不同程度的提高。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- The resistance ratios of An. dirus to deltamethrin and clocythrin were 1.12 and 1.31 times in Qiongzhong. 琼中县大劣按蚊对溴氰菊酯和氟氯氰菊酯的抗性倍数分别为1.;12和1
- The singer forced his low notes. 那位歌手勉强唱出低音。
- The low reactance design of the generator has made extremely low wave form distortion under non-linear load, and has good motor starting ability; 发电机低电抗设计使非线性负载下的波形失真极少,并有良好的起动电动机能力;
- He because of bashful but low head. 他因羞愧而低下了头。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- Resistance ratios to deltamethrin,beta-cypermethrin,cypermethrin,cyfluthrin and DDVP were(1.52)-(8.28),but there are very susceptive to propoxue with resistance ratio(0.92)-(1.13). 对溴氰菊酯、高效氯氰菊酯、顺式氯氰菊酯、高效氟氯氰菊酯、敌敌畏已不同程度地产生抗性;抗性倍数在1.;52~8
- My home town lies low in a hidden valley. 我的家乡位于一个隐蔽的山谷里。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- After a brief rally share fall back to a new low. 股票经过一次短暂回升后回落到一个新的低点。
